---
product_id: 12676750
title: "Sleep Master Smart Box Spring, King"
price: "76320102₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/12676750-sleep-master-smart-box-spring-king
store_origin: VN
region: Vietnam
---

# King size 76"x79"x9" Easy 45-min assembly 5-year warranty Sleep Master Smart Box Spring, King

**Price:** 76320102₫
**Availability:** ✅ In Stock

## Summary

> 🛏️ Elevate your sleep game with the Smart Box Spring — where strength meets style and simplicity!

## Quick Answers

- **What is this?** Sleep Master Smart Box Spring, King
- **How much does it cost?** 76320102₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/12676750-sleep-master-smart-box-spring-king)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Move-Ready:** Disassembles easily for hassle-free moving or storage—goodbye bulky, heavy box springs!
- • **King-Sized Stability:** Robust steel frame engineered to perfectly support your mattress, ensuring a flat, level foundation every night.
- • **Sleek & Durable Cover:** Knitted polyester poly jacquard cover blends seamlessly with modern bedrooms while protecting your investment.
- • **Sleep with Confidence:** Backed by a 5-year warranty, this foundation guarantees long-lasting durability and peace of mind.
- • **Effortless Setup, Zero Stress:** All tools included with intuitive design for a quick 45-minute assembly—no handyman skills needed.

## Overview

The Sleep Master Smart Box Spring King features a sturdy alloy steel frame wrapped in a sleek knitted polyester cover, designed for easy assembly in just 45 minutes with all tools included. Measuring 76"x79"x9", it offers a stable, flat foundation for your mattress, backed by a 5-year warranty. Its compact packaging and lightweight design make it perfect for millennials who value convenience, durability, and modern aesthetics in bedroom essentials.

## Description

We like to think of a box spring as the backbone for your mattress. The best kind should be flat, level and built to keep your mattress in tiptop shape; and that’s just what the Smart Box Spring does! With its easily assembled, dependable steel structure, you can rest assured that your mattress will be sitting pretty. An included poly jacquard cover blends with the rest of your bedroom, and with a variety of different thicknesses to choose from, you can pick the one you need to customize the height of the bed. All packed in a compact shipping box with everything included, even our 5-year worry free warranty! Now that’s peace of mind you can sleep on.

Review: Easy 45 Minute Assembly with sticky notes - I knew there were going to be a lot of parts, so I decided to be as organized as possible. After opening the box, I marked each group of items with a sticky note to make assembly as easy as possible. It took 45 minutes total to label, assemble, and put the cover on. I especially loved the mini ratchet tool that was included; it made tightening everything much faster and easier than using a standard allen wrench. Everything fit as expected and was easy to move into our rolling adjustment frame. The King mattress fits nicely on the metal box spring and does not slide around at all. It looks great and feels very solid. We are looking forward to having family visit and hope they enjoy the comfort. If you take the time to organize the pieces first and use the provided ratchet, this is a very straightforward and high-quality setup
Review: Best Box Spring Ever! - This product is great, I am 100% satisfied with this purchase. I am using this box spring with a Nature Sleep memory foam mattress. If you have an innerspring mattress your mileage may vary. My review as follows will cover several different aspects of this product and why they are great. Portability: Who knew you could assemble a box spring instead of lugging around a 50+ pound bulky wooden frame? Once assembled, the frame is lightweight and much easier to move around than a traditional box spring. The next time I move I am just going to take it apart instead of it taking up space in the moving truck, very economical in that sense. Assembly: Assembly was very easy, no mechanical inclinations required from the assembler. The set comes with an allen wrench/hex key and you use that to hold bolts in place while you tighten wingnuts with your fingers. Please ignore any reviewer of this product who said it was too difficult to assemble, took too long, or had confusing instructions, they are either lazy or completely incompetent. It took me about an hour to assemble by myself, and it would have taken even less time if I hadn't been half watching TV and drinking a beer while I was putting it together. The instructions aren't written words, but pictures showing which pieces to assemble with which bolts, but if you ever built a Lego set when you were a kid you should be able to handle this. It is easy to tell which pieces should be facing up during assembly, because most have a 'this side up' sticker. The pieces that don't, it either doesn't matter which side is up or you can tell which side should be up because of the notches the slats will fit into at the end. The Cover/ Looks: The zip cover looks nice and the white sides are a soft plush. Make sure you sweep your floor before zipping the cover on though or you might get dirt all over the nice white part. Some people said that the cover ripped when they were zipping it up, that was not the case for me. The cover is a very tight and perfect fit, but the white sides stretch. So when you zip it on, don't just yank on the zipper as hard as you can, pull up on the white parts that stretch and it will make the zipper easier to close. Durability: It seems sturdy enough to me. I have had for two weeks, no complaints. I have unzipped and re-examined the frame and it has not bent or buckled under the weight of two people or any vigorous activity. Could you bend the metal of the frame after you put it together? I guess you could if you tried to, but why would you do that deliberately? Putting a mattress on top of it and using as intended should leave you with no issues. I hope this review provided all the information needed to help in your purchase decision, and I am sure you will be satisfied with this box spring.

## Features

- Steel Interior Frame With Knitted Polyester Cover
- Strong and Sturdy metal structure
- Convenient and compact packaging
- All tools included for easy assembly
- 5 year warranty
- 76"x79"x9"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #42,449 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #31 in Box Springs |
| Color | Grey |
| Customer Reviews | 4.5 out of 5 stars 82,502 Reviews |
| Finish Type | Metal |
| Material | Alloy Steel |
| Size | King |
| Special Feature | Easy assembly |
| Style | Original |

## Images

![Sleep Master Smart Box Spring, King - Image 1](https://m.media-amazon.com/images/I/81efHkrn1OL.jpg)
![Sleep Master Smart Box Spring, King - Image 2](https://m.media-amazon.com/images/I/81pDQwtSDeL.jpg)
![Sleep Master Smart Box Spring, King - Image 3](https://m.media-amazon.com/images/I/81OYF4iuqeL.jpg)
![Sleep Master Smart Box Spring, King - Image 4](https://m.media-amazon.com/images/I/61epyXuOcBL.jpg)
![Sleep Master Smart Box Spring, King - Image 5](https://m.media-amazon.com/images/I/81jdaFW2hiL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Are any tools required to assemble my box spring?**
A: This box spring is shipped with everything you need to assemble it - all parts, tools and instructions can be found efficiently packed in the shipping box.

**Q: Does this box spring require a bed frame?**
A: A basic metal bed frame or platform bed is required to support this box spring. Add your mattress, and you've got the dynamic trio for rock solid support.

**Q: What kind of mattress can this box spring support?**
A: Our box springs are designed to do it all! Rest your memory foam, latex or spring mattress on top for smooth snoozing.

**Q: What is the distance between slats?**
A: For Twin and Full sizes, spacing is 6.3 inches. For Twin XL, Queen and King sizes, spacing is 6.7 inches. For California King size, spacing is 7.2 inches.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy 45 Minute Assembly with sticky notes
*by L***E on January 5, 2026*

I knew there were going to be a lot of parts, so I decided to be as organized as possible. After opening the box, I marked each group of items with a sticky note to make assembly as easy as possible. It took 45 minutes total to label, assemble, and put the cover on. I especially loved the mini ratchet tool that was included; it made tightening everything much faster and easier than using a standard allen wrench. Everything fit as expected and was easy to move into our rolling adjustment frame. The King mattress fits nicely on the metal box spring and does not slide around at all. It looks great and feels very solid. We are looking forward to having family visit and hope they enjoy the comfort. If you take the time to organize the pieces first and use the provided ratchet, this is a very straightforward and high-quality setup

### ⭐⭐⭐⭐⭐ Best Box Spring Ever!
*by B***D on April 29, 2015*

This product is great, I am 100% satisfied with this purchase. I am using this box spring with a Nature Sleep memory foam mattress. If you have an innerspring mattress your mileage may vary. My review as follows will cover several different aspects of this product and why they are great. Portability: Who knew you could assemble a box spring instead of lugging around a 50+ pound bulky wooden frame? Once assembled, the frame is lightweight and much easier to move around than a traditional box spring. The next time I move I am just going to take it apart instead of it taking up space in the moving truck, very economical in that sense. Assembly: Assembly was very easy, no mechanical inclinations required from the assembler. The set comes with an allen wrench/hex key and you use that to hold bolts in place while you tighten wingnuts with your fingers. Please ignore any reviewer of this product who said it was too difficult to assemble, took too long, or had confusing instructions, they are either lazy or completely incompetent. It took me about an hour to assemble by myself, and it would have taken even less time if I hadn't been half watching TV and drinking a beer while I was putting it together. The instructions aren't written words, but pictures showing which pieces to assemble with which bolts, but if you ever built a Lego set when you were a kid you should be able to handle this. It is easy to tell which pieces should be facing up during assembly, because most have a 'this side up' sticker. The pieces that don't, it either doesn't matter which side is up or you can tell which side should be up because of the notches the slats will fit into at the end. The Cover/ Looks: The zip cover looks nice and the white sides are a soft plush. Make sure you sweep your floor before zipping the cover on though or you might get dirt all over the nice white part. Some people said that the cover ripped when they were zipping it up, that was not the case for me. The cover is a very tight and perfect fit, but the white sides stretch. So when you zip it on, don't just yank on the zipper as hard as you can, pull up on the white parts that stretch and it will make the zipper easier to close. Durability: It seems sturdy enough to me. I have had for two weeks, no complaints. I have unzipped and re-examined the frame and it has not bent or buckled under the weight of two people or any vigorous activity. Could you bend the metal of the frame after you put it together? I guess you could if you tried to, but why would you do that deliberately? Putting a mattress on top of it and using as intended should leave you with no issues. I hope this review provided all the information needed to help in your purchase decision, and I am sure you will be satisfied with this box spring.

### ⭐⭐⭐⭐⭐ Good buy!
*by H***. on December 27, 2025*

Super easy to put together, sturdy, and fits perfect. It’s also light enough that I could drag it to the bedroom after putting it together and I’m pretty weak lol

## Frequently Bought Together

- ZINUS 9 Inch Metal Smart Box Spring, Mattress Foundation, Strong Metal Frame, Easy Assembly, King
- Utopia Bedding Waterproof Mattress Protector King Size, Premium Terry Mattress Cover 200 GSM, Breathable, Fitted Style with Stretchable Pockets (White)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-18*