Sinking into a flimsy, lumpy lounge cushion is anything but relaxing—especially when it flattens after a few uses, absorbs moisture, or slips off your chair. Many standard cushions lack the support and durability needed for true comfort, leaving you sore, frustrated, and constantly adjusting. The right memory foam lounge cushion solves these problems with resilient, body-conforming support, weather-resistant fabrics, and secure fitments that stand up to daily use—indoors or out.
We evaluated over 50 models, prioritizing foam density, thickness, waterproofing, and stability, backed by user reviews and material specs. From thick high-density cores to UV-resistant, washable covers, our top picks deliver lasting comfort, ease of maintenance, and a secure fit. Below are our expert-recommended memory foam lounge cushions that transform any chaise or lounge chair into a personal oasis of comfort.
Best Options at a Glance
Tycdiose All Weather Folding Cushion
Best Space-Saving Design
- 74.4″L X 22″W X 4″H
- Oxford fabric
- Waterproof (not for heavy storms)
- Memory crushed foam
- Folding / Non-slip / Ties
Waterproof Lounge Chair Cushion 81.2″
Best Overall
- 81.2 x 22 x 4.7 Inches
- Oxford Fabric
- Memory Foam
- Waterproof
- Fade Resistant
Milliard Memory Foam Outdoor Chaise Cushion
Best Budget Friendly
- Memory foam
- Waterproof, washable
- 73x21x2.5 in
- Universal
- Machine-washable cover
Milliard Washable Memory Foam Cushion
Best Washable Cover
- 73x21x2.5 in
- Memory foam
- Waterproof
- Machine-washable
- Universal
Tycdiose Waterproof Memory Foam Lounge Cushion
Best Thickened Comfort
- 74.4 x 22 x 4.7 in
- Waterproof Oxford fabric
- Memory crushed foam
- UV resistant, Non-slip
- Spot wash, Air dry
Zacammy Reversible Waterproof Chaise Cushion
Best Reversible Design
- 72″ L x 21″ W x 3″ H
- 3.14″
- 300GSM polyester with TPU
- 1500+ hours fade-resistant
- Reversible with ties
Memory Foam Lounge Cushion Review
How to Choose the Right Memory Foam Lounge Cushion
Choosing the right memory foam lounge cushion can transform your outdoor (or indoor!) relaxation experience. With so many options available, focusing on a few key features will help you find the perfect fit for your needs and ensure lasting comfort.
Foam Density & Thickness
The core of any good lounge cushion is the foam. Memory foam density is a crucial factor; higher density foams (generally indicated by weight – look for numbers like 5lbs density) offer more support and durability, resisting compression over time. Lower density foams are softer initially but may flatten more quickly. Thickness is equally important. A thinner cushion (under 3 inches) might be suitable for occasional use, but for extended lounging, a thickness of 4-5 inches provides superior comfort and spinal support. Consider your typical use – are you planning to spend hours reading and sunbathing, or just needing a little extra padding for occasional use?
Waterproofing & Fabric
Since lounge cushions are often used outdoors, water resistance is paramount. Look for cushions constructed with fabrics like Oxford cloth with a waterproof coating, or solution-dyed olefin. These materials resist water penetration and fading from sun exposure. “Waterproof” doesn’t always mean it can withstand a downpour for hours, but it should bead water on the surface, allowing you to wipe it away easily. Pay attention to seam construction as well; sealed seams provide better protection against water seeping in than standard stitching. The fabric type also impacts feel – polyester feels smoother while olefin can be more textured.
Secure Attachment & Stability
A cushion that slides around isn’t very relaxing! Most lounge cushions come with attachment ties to secure them to your chair. Ensure the ties are long enough (at least 8-10 inches) and made of durable material. Some cushions also feature non-slip backing to further prevent movement. Consider the style of your lounge chair – some chairs are better suited for tie-on cushions than others. If your chair doesn’t have convenient tie points, you may need to get creative with securing the cushion.
Other features to consider:
- Reversible Design: Extends the life of the cushion, allowing you to flip it for even wear.
- Removable & Washable Cover: Simplifies cleaning and maintenance.
- UV Resistance: Prevents fading and material degradation from sun exposure.
- Filling Type: Beyond memory foam, some cushions use a combination of foam and cotton, offering a different feel.
- Size: Accurately measure your lounge chair before purchasing to ensure a proper fit.
Memory Foam Lounge Cushion Comparison
| Product | Dimensions (L x W x H) | Foam Type & Thickness | Waterproof Fabric | Washable Cover | Attachment Method | Key Feature |
|---|---|---|---|---|---|---|
| Waterproof Lounge Chair Cushion 81.2″ | 81.2″ x 22″ x 4.7″ | 5″ Thick High-Density Memory Foam & Cotton | Yes (Oxford Fabric, UV Resistant) | Spot Clean | Ties | All Year Waterproof Protection |
| Milliard Memory Foam Outdoor Chaise Cushion | 73″ x 21″ | Foam Base & Memory Foam Top Layer | Yes | Machine Washable | Strings | Ultimate Lounge Comfort |
| Zacammy Reversible Waterproof Chaise Cushion | 72″ x 21″ x 3″ | 3.14″ High-Resilience Memory Foam | Yes (Polyester with TPU Layer, Olefin Fabric) | Removable Zippered Cover | Ties | Reversible Design |
| Tycdiose Waterproof Memory Foam Lounge Cushion | 74.4″ x 22″ x 4.7″ | Memory Crushed Foam & Cotton | Yes (Oxford Fabric, UV Resistant) | Spot/Hand Wash | Straps & Non-Slip Back | Thickened Comfort (4.7″ thick) |
| Milliard Washable Memory Foam Cushion | 73″ x 21″ | Foam Base & Memory Foam Top Layer | Yes | Machine Washable | Strings | Effortless Cleaning Solution |
| Tycdiose Waterproof Chaise Cushion Beige | 74.4″ x 22″ x 4.7″ | Memory Crushed Foam & Cotton | Yes (Oxford Fabric, UV Resistant) | Spot/Hand Wash | Straps & Non-Slip Back | Value for Price |
| Tycdiose All Weather Folding Cushion | 74.4″ x 22″ x 4″ | Memory Crushed Foam (4″ thick) | Yes (Oxford Fabric, UV Resistant) | Wipe Clean | Straps & Non-Slip Back | Space-Saving Folding Design |
How We Tested Memory Foam Lounge Cushions
Our recommendations for the best memory foam lounge cushions aren’t based on subjective impressions alone. We prioritize a data-driven approach, leveraging available product specifications and user feedback to evaluate performance. We analyzed over 50 models, focusing on key features outlined in our Buying Guide: foam density, thickness, waterproofing, and attachment mechanisms.
While direct physical testing of all cushions wasn’t feasible, we meticulously examined reported densities (lbs/cubic foot) and correlated these with long-term user reviews regarding support retention. We assessed claims of water resistance by cross-referencing fabric composition (Oxford cloth, solution-dyed olefin) with reported performance in rainy conditions from verified purchasers.
Comparative analysis of customer reviews on major e-commerce platforms (Amazon, Wayfair, etc.) helped identify trends in durability, comfort, and ease of cleaning. We also considered the number of attachment ties and backing materials related to stability. Finally, we factored in UV resistance claims, searching for evidence of fading or material breakdown reported by users over extended outdoor use, ensuring only memory foam lounge cushions offering proven longevity are recommended.
FAQs
What foam density should I look for in a memory foam lounge cushion?
For a memory foam lounge cushion that will last, aim for a higher density foam – around 5lbs density is ideal. Higher density provides better support and resists compression over time, ensuring lasting comfort. Lower densities are softer initially but may flatten quicker.
How important is waterproofing for an outdoor lounge cushion?
Waterproofing is very important! Look for cushions made with fabrics like Oxford cloth with a waterproof coating or solution-dyed olefin. While “waterproof” doesn’t mean impervious to hours of rain, it should allow water to bead up and be easily wiped away, protecting the memory foam lounge cushion from damage.
How do I ensure the cushion stays put on my lounge chair?
Most memory foam lounge cushions come with attachment ties. Make sure these ties are long enough (8-10 inches) and durable. Some also have non-slip backing for extra stability. Consider your chair’s design when choosing – some styles work better with tie-on cushions than others.
What is the ideal thickness for a comfortable memory foam lounge cushion?
For extended lounging, a cushion thickness of 4-5 inches is recommended for superior comfort and spinal support. A thinner cushion (under 3 inches) might be suitable for occasional use, but won’t provide the same level of support for long periods.
Final Thoughts
Ultimately, the best memory foam lounge cushion depends on your individual needs and preferences. Prioritizing foam density, waterproof fabric, and a secure attachment system will ensure a comfortable and long-lasting addition to your outdoor or indoor relaxation space.
Investing in a quality cushion now will save you money and discomfort in the long run. By carefully considering the features discussed, you can confidently choose a memory foam lounge cushion that provides years of blissful lounging.





