A PregoPillow SET includes 2 stackable foam pillows: 
--A smaller-sized pillow for the beginning stages of pregnancy
--A medium-sized pillow for mid-pregnancy
The 2 pillows also fit together to be stacked for later in pregnancy or bigger bellies.
 
SIZE: 16" x 24"
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What are PregoPillows made of?  
We use industrial, professional-grade memory foam that supports the weight of mama & sweet baby. (Heck, I recovered my Gonstead bench with this Tempurpedic-style memory foam!) This makes it super comfy for mama to lay face down on like a memory foam bed, yet still have her pregnant belly fully supported.
 
SIDEKICK Sets include:
--A matching cover to lay over your PregoPillows for when little one gets adjusted
--A matching smooshable pillow with washable, removable cover

What about the foam casings? 
Each PregoPillow has a cotton/upholstery cotton fabrc liner over the memory foam to provide extra protection & support. 
 
Side Effects: We know the side effect of a good chiropractic adjustment may reinforce the lays of gravity- what goes in, must come out! ;) For that reason we try to protect your investment with a casing + cover. 
 
DURABILITY: A washable, removable cover for each pregnancy pillow covers the cotton casing. Removable covers are made from upholstery grade fabric, similar in thickness and density to denim.