5 Little Monkeys Mattress Review

5 Little Monkeys is a US-made, kids-only sleep brand. It sells two bundle-ready youth mattresses at about $479 to $599 on sale. You get a free pillow and waterproof protector, a 100-night trial and a 15-year warranty. It's best if you're a parent of a child aged 3 to 18 who wants a washable, accident-ready bed. It comes in Twin, Full and Queen only. It sells direct, and third-party reviews are limited.

Choose the Advanced Hybrid 9-inch if your child sleeps hot or moves a lot, or needs livelier coil support. Choose it too if you want the 9-inch height. Choose the 8-inch all-foam Kids Sleep System if you want the flagship low-profile bundle for bunk, trundle, platform or daybeds. It's also easier to wash after accidents.

Both are Cushion Firm at about 7 out of 10, for ages 3 to 18. They aren't adult primary beds. The brand doesn't publish side or stomach sleeper details or weight limits (checked September 2026).

We saw a sale band of about $479 to $599 for Twin, Full and Queen mattresses, with bundle promos. The promos are $100 off plus a free pillow and protector. The site also cites 40% off the hybrid and 15% off bedding and bases. The hybrid shows a $799.00 reference price. Separate protectors run $119 to $169, sheet sets $99 to $129, and a pillow $99 in search results.

It's competitive kids-bundle pricing, with washable waterproof parts and a 15-year warranty included. The final delivered price varies by sale and size. The brand doesn't publish a firm per-size price table (checked September 2026).

Per the official site, the Hybrid has a washable, stain and water resistant organic cotton cover with a heavy-duty zipper. Under it are open-cell memory foam with Dual Phase Change Gel, a pressure-adaptive support layer, individually wrapped coils and a durable base. The Sleep System has 3 layers of CertiPUR-US memory foam. Those are open-cell comfort foam with Dual Phase Change Gel, pressure-adaptive support and a durable base. The cover is removable, washable OEKO-TEX Standard 100 organic cotton with non-toxic waterproof backing. You also get an organic cotton waterproof protector and a hypoallergenic, machine-washable pillow with spinal-alignment fill.

The foam is CertiPUR-US certified, made without formaldehyde, heavy metals or ozone depleters. The fabric is OEKO-TEX Standard 100 certified. The flame barrier is UL GREENGUARD Gold certified, fiberglass-free cellulosic and has no chemical finishes. The mattress meets Federal Flammability Standard 16 CFR 1632 and is made in the USA. The brand doesn't publish layer densities, coil counts or foam IFDs (checked September 2026).

The mattress has a 15-year limited warranty. The pillow, protector and bedding carry a 1-year warranty from the purchase date. You get one replacement per period, and only the original purchaser who bought direct or from an authorized seller is covered. Sag over 1.5 inches deep is covered, plus splitting or cracking foam.

Slight impressions under 1.5 inches, comfort preference, stains, misuse, a faulty base, floor use and transport charges are excluded. You need the brand protector, a supportive platform or slatted base with center support, proper care, and your receipt plus law tags. The brand doesn't publish independent durability or sag-test data (checked September 2026).

The brand site claims 50,000-plus satisfied customers. The homepage shows 1546 reviews with a 95% top rating, and product pages cite 819 reviews. The brand doesn't publish individual review text or a rating breakdown (checked September 2026).

The brand doesn't publish Trustpilot, BBB or Amazon rating counts or complaint themes either. We found no verified third-party complaint pattern.

You buy direct at 5littlemonkeysbed.com, or by phone at 844-325-5555. The brand doesn't publish physical showrooms, partner retailers or in-store trial locations (checked September 2026). It also doesn't publish broad marketplace availability.

The brand markets Fast and Free Shipping, with free shipping and returns. The FAQ says it arrives in 3 to 7 business days. Shipping is free within the 48 contiguous states, with added freight for Hawaii, Alaska and Puerto Rico.

The brand doesn't publish carriers, dispatch times, setup or white-glove service (checked September 2026). It doesn't publish old-mattress removal either.

The 100-Day and 100-Night Rest Test lets you try the bed for the first 100 days or nights. If you're unhappy, you get a full refund. Start by contacting the returns department at 844-325-5555. Returns are described as free within the 48 contiguous states for kid bed packages.

The brand doesn't publish a minimum keep period, exchange versus refund steps, damage or unsanitary return limits, or restocking and pickup fees (checked September 2026).

The warranty covers mattress defects in materials and workmanship, including severe body contours over 1.5 inches and foam splitting or cracking. It also covers workmanship and material defects in the foundation, protector and sheets (1 year) and the pillow (1 year). The company chooses repair or replacement, with an equal-or-better substitute if the item is unavailable.

You need a claim form, proof of purchase and law tags, plus photos if asked. You may have to pay or arrange freight to the Commerce, CA warehouse. It excludes comfort feel, transport, unsanitary condition, improper use or care and cover fabric flaws. It also excludes abuse, burns, cuts, tears, liquids, stains, tampering and ordinary wear. Unauthorized-seller or used goods and normal softening or wash wear are out too.

Against Naturepedic Kids, 5 Little Monkeys wins on lower bundle sale pricing and an included washable waterproof system. It loses on organic and GOTS breadth and independent toxin transparency. Against Avocado Eco Kids, it wins on an accident-ready washable cover and a pillow plus protector bundle. It loses on latex and organic depth and adult-size range.

Against Saatva Youth, it wins on waterproof washability and its fiberglass-free flame barrier story. It loses on white-glove delivery and a dual-sided age-flip design. Against Helix Kids, it wins on bundle simplicity and a clear 15-year term. It loses on sleep-quiz customization and published third-party reviews.

We read the brand's own product, policy and warranty pages, then checked retailer listings and public complaint sites like the Better Business Bureau. We last checked everything here in September 2026. Prices and policies change, so confirm them on the seller's page before you buy. You can read more in our methodology and editorial policy.