Casper Wave Vs. Purple (Original) – Which Should You Get?

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[Editor’s Note: Casper no longer offers the Casper Wave mattress without coils, but they do offer an updated Casper Wave Hybrid. Take a look at our most up-to-date Casper Wave Hybrid mattress review.]

Casper Wave and Purple are both all-foam mattresses designed to be both responsive and supportive. This mattress comparison will go over the differences between the two models so you can determine which better meets your needs.

Key Similarities

  • Both have responsive surfaces that have good bounce.
  • Both can be suitable for all three sleeping positions (back, stomach, and side).
  • Both offer 100-day trials and free shipping.
  • Both should be able to handle heavier-weight sleepers and are both very supportive overall.

Key Differences

  • Purple costs less ($699 to $1,299 for the original Purple; $1,095 to $2,395 for Casper Wave).
  • Purple is thinner. (Purple is 9.5″ thick, while Casper Wave is 11.5″ thick.)
  • Purple uses a proprietary gel material that is both supportive and pressure-relieving at the same time.
  • Casper Wave uses memory foam and has more layers overall.
  • Casper Wave will be softer for most sleepers.

Deals: You can save $50 on the Casper Wave by clicking HERE and using code “MATTRESSCLARITY”. You can get two free Purple seat cushions when you click HERE and buy a Purple Mattress.

Man pressing down on foam layers in mattress

Casper Wave Construction

  • Casper Wave has a thick, soft, durable cover that doesn’t affect the overall feel of the mattress too much.
  • The top layer is 1″ of proprietary “Flo Foam,” a soft material made to relieve pressure.
  • Next is a 1.5″ layer of latex foam, which provides support.
  • The middle layer is 1.5″ of fast-responding, visco-elastic memory foam. This layer contributes to the Wave’s springiness.
  • Next up is a transition layer made up of 1.5″ of high-resiliency foam with a polymer network.
  • The base is 5.5″ of support foam with contour cuts to create zoned support.

Read our full Casper Wave Review HERE.

purple mattress layers

Purple Construction

  • The original model from Purple has just three layers.
  • The cover is a breathable blend of viscose, polyester, and polyester-lycra that also doesn’t affect the feel of the mattress too much.
  • The top layer contains 2″ of hyper-elastic polymer. This unique material gives the mattress its particular bounciness, pressure relief, and coolness.
  • Next is a 3.5″ layer of relatively dense polyurethane foam.
  • The base is 4″ of dense polyurethane foam and is pretty standard for an all-foam mattress.

Read our full Original Purple Review HERE.

Construction Differences/Notes

  • Both have responsive surfaces with noticeable bounce.
  • Both conform to contours, but the Wave works better for side sleepers who weigh less.
  • The Wave has more layers and is definitely softer.
  • The Wave offers zoned support, meaning it has different levels of firmness in different sections of the mattress.
  • Purple has a more temperature-neutral surface, so it should be more breathable overall.

Before making a final purchase decision, it may also be helpful to see how these mattresses stack up to other brands by checking out our popular Casper and Purple comparisons like Casper Wave vs Nectar and Purple vs Tuft & Needle.

Firmness/Feel Differences

Both are responsive to pressure, but the Wave is softer and has more of an airy feel. The Purple gel material is both firm and pressure-relieving at the same time.

Motion Transfer Differences

Both absorb and isolate motion well, but in this particular case, I would give the Casper Wave a slight advantage.

Pick Casper Wave If …

  • You are lightweight and sleep on your side- Casper Wave is softer than the original Purple and will conform better to contours for people who weigh less. The Purple may feel too firm for people below a certain weight, especially those who sleep on their side.
  • You need more support- The Wave is thicker and is zoned to support different parts of the body in different ways.

Pick Purple If …

  • You are on a budget- Purple costs less and is a great value, so if you can’t decide then it at least gives you the opportunity to save some money.
  • You are concerned about sleeping hot- Purple has a completely temperature-neutral sleeping surface. It’s not that you will sleep cool with this mattress; rather, the sleeping surface will just be temperature-neutral.

RELATED: Top Mattress Picks Of The Year


These two mattresses both offer a unique combination of responsiveness and supportiveness, but each is better suited to different types of sleepers. Hopefully this comparison helped you determine which you might prefer. Please leave specific questions about the two models in the comments.

Gravatar for Joe Auer

Joe Auer

Joe Auer is the editor of Mattress Clarity. He mainly focuses on mattress reviews and oversees the content across the site.

He likes things simple and take a straightforward, objective approach to his reviews. Joe has personally tested nearly 250 mattresses and always recommends people do their research before buying a new bed. He has been testing mattresses for over 5 years now, so he knows a thing or two when it comes to mattress selection. He has been cited as an authority in the industry by a number of large publications.

Joe has an undergraduate degree from Wake Forest University and an MBA from Columbia University.