Best 33 Inch Wide Mattresses and Mattress Pads for Comfort and Fit
Choosing the right 33 inch wide mattress is key for narrow beds like daybeds, cots, RV bunks, and small guest rooms. This guide reviews top products including mattress pads, memory foam options, and gel-infused mattresses designed to fit snugly and provide comfort. Below is a summary table of selected products to help you compare key features at a glance.
| Product Name | Brand | Size | Material | Special Features |
|---|---|---|---|---|
| Coldwind Cot Mattress Pad Protector | Coldwind | 33″ x 75″ | Quilted microfiber with TPU waterproof layer | Waterproof, ultra soft, deep pocket fit |
| Customize Bed 8 Inch Gel Memory Foam Mattress | Customize Bed Inc | 33″ x 74″ | Gel-infused memory foam with bamboo cover | Temperature regulating, CertiPUR-US certified |
| Fortnight Bedding 6 inch Gel-Infused Memory Foam Mattress | Best to Rest | 33″ x 74″ | Gel-infused memory foam layers | CertiPUR-US certified, 10 year warranty |
| Amzreine Baby Bassinet Mattress Pad | Amzreine | 33″ x 20″ x 2″ | Dual-sided gel memory foam | Waterproof, removable, breathable cover |
| Lisara Baby Bassinet Mattress | Lisara | 33″ x 22″ | Gel memory foam with ice silk cover | Waterproof, removable, breathable |
Coldwind Waterproof 33 Inch Cot Mattress Pad Protector

The Coldwind Cot Mattress Pad Protector measures 33″ x 75″ and is designed for narrow twin beds, daybeds, camping cots, RV bunks, and more. It features a waterproof TPU layer that prevents liquid penetration while keeping the surface soft and absorbent. The quilted microfiber top filled with down alternative provides breathable comfort friendly to sensitive skin. Deep pockets accommodate mattresses up to 10 inches thick, ensuring a snug fit on various cot-style sleeping setups. Its versatility and waterproof protection make it ideal for travel or home use.
Customize Bed 8 Inch Gel Memory Foam Mattress 33×74 Inches

This Customize Bed 8 Inch Gel Memory Foam Mattress is CertiPUR-US certified and measures 33″ x 74″, perfect for cots, RV beds, folding beds, and daybeds. The gel-infused memory foam helps regulate temperature by dissipating heat for a cooler night’s rest. It contours to the body, offering lumbar and spine support, making it a practical choice for students or travelers. The rayon-derived bamboo cover adds moisture-wicking and breathable properties. Made in the USA, it emphasizes durability and comfort in a compact size.
Fortnight Bedding 6 Inch Gel-Infused Memory Foam Mattress 33×74

The Fortnight Bedding 6 Inch Gel-Infused Memory Foam Mattress combines 2 inches of gel memory foam with 4 inches of high-density foam for balanced support. It is designed in a 33″ x 74″ size tailored for cots, daybeds, RV, trundles, and bunk beds. The mattress’s foam is CertiPUR-US certified, ensuring safety and quality standards. Its gel infusion enhances breathability and temperature regulation. The mattress offers firm comfort suitable for various sleeping preferences and includes a 10-year warranty, underlining its durability.
Amzreine Baby Bassinet Mattress Pad 33×20 Dual Sided Gel Memory Foam

The Amzreine Baby Bassinet Mattress is a 33″ x 20″ x 2″ dual-sided gel memory foam pad offering different firmness levels on each side. The firmer side is designed for infants (0-6 months), and the softer side supports toddlers (6-12+ months). Its lightweight design suits travel and nursery use. The breathable, removable cover is machine washable, featuring a waterproof layer protecting against spills and moisture. It fits popular bassinets like Mika Micky, KoolerThings, and Baby Delight.
Lisara Baby Bassinet Mattress 33×22 Waterproof, Breathable Cover

The Lisara Baby Bassinet Mattress measures 33″ x 22″ and includes a dual-sided gel memory foam core. Its removable cover combines 35% ice silk with polyester fabric, providing breathability and a cooling sensation during warmer months. The cover is waterproof on both sides with a TPU membrane that repels liquids like perspiration and stains. Designed for bassinets including Fodoss models, it balances comfort and hygiene for babies.
Buying Guide for 33 Inch Wide Mattresses
When selecting a 33 inch wide mattress, consider the following key factors to find the best fit and comfort tailored to your needs:
1. Size and Fit
Ensure the mattress dimensions match your bed frame or cot precisely. Common 33 inch width options vary in length from 74 to 75 inches, so confirm your bed size before purchase. Deep pocket mattress pads offer flexibility for thicker mattresses.
2. Mattress Type and Comfort
Memory foam mattresses contour to body shape providing pressure relief and support. Gel-infused foam options help regulate temperature and increase cooling. For temporary or travel use, mattress pads with waterproof features and softness might be preferable.
3. Waterproof and Breathability Features
Waterproof covers protect against spills, sweat, and allergens, enhancing mattress longevity. Breathable fabric covers promote air circulation to keep sleeper cool and comfortable.
4. Durability and Certifications
Look for CertiPUR-US certification which guarantees foam quality, safety, and environmental standards. High-density foam provides support and resilience over time. Warranty offerings may indicate the manufacturer’s confidence in product durability.
5. Ease of Cleaning and Maintenance
Removable and machine washable mattress covers simplify upkeep. Some products feature waterproof layers on both sides for added protection. Consider simple cleaning if you expect frequent use by children or in travel situations.
6. Intended Use
Consider whether the mattress will be used daily or occasionally. For bassinets or cots, dual firmness sides or travel-friendly lightweight options may enhance usability. For home or guest beds, thicker memory foam mattresses provide more substantial support.
Overall, evaluate your unique sleeping needs, bed frame dimensions, and lifestyle to pick the optimal 33 inch mattress that combines comfort, size compatibility, and protection features.