Anyone know the difference between a D-core and Tri-core pillow?

I actually wrote the company and asked them, and this is the answer I got from one of their customer service representatives : “Hello – The difference between the two would be the price. The D-Core is a more economical version of the tri-core. The Tri-core would most likely stand up lone han the D-core.” I Assume that she meant “longer than” the D-Core, But if the company sells a more expensive product, then normally they advertise the features and benefits of that “better” or more “long-lasting” product.

I am a side/stomach sleeper. I have a herniiated dics in my neck. I dont like hard or thick pillows. Would you recommend the mid core pillow? Thanks

This is a fairly thick and firmer type of neck pillow. There are a lot of other fiber neck pillows on the market today where there is more give to the pillow. If you have a herniated disc, consider a traction pillow where the pillow will give your neck a gentle stretch as well when you are sleeping on your side or back. None of these pillow works well for stomach sleepers.

what is the difference between the 240 D core and the and the midsize 241 D core?

240 D core: 24"x 16" (61cm x 41cm). 241 D core: 22"x 15" (56cm x 38cm).

Has anyone had any success using the D-core pillow for side sleeping? Are you suppose to turn the pillow vertically? Sides seem way too high.

I sleep on my side most of the night and it seemed too high at first for me too but my neck must have gotten used to it and now I don't notice which side of the pillow I sleep on (I flip it every night). I have slept with my head in the middle between the two sides and on each side. I can't sleep on any other kind of pillow without neck aches so this pillow is a life saver for me. I've never had a neck injury, I just noticed my neck being stiff all the time and cracking when I would drive. I don't have either of those things happening now.

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🛌 Sleep Smart, Wake Aligned: The Pillow Your Neck Has Been Waiting For

CUSTOMIZABLE FIRMNESS - Choose between two neck rolls—smaller for adjustment phase, larger for maximum orthopedic support.
ERGONOMIC NECK ALIGNMENT - D-shaped center cradles your head while dual cervical rolls restore natural spine curvature for pain-free mornings.
DESIGNED FOR BACK SLEEPERS - Optimized shape supports proper posture during back sleeping, reducing tension headaches and neck spasms.
PREMIUM QUALITY DURABILITY - Made in the USA with nonallergenic virgin polyester fiber fill and a breathable cotton/polyester cover.
GRADUAL ORTHOPEDIC TRANSITION - Ease into better posture by alternating with your current pillow to avoid discomfort and maximize results.

The Core Products FIB-240 D-Core Cervical Support Pillow is a firm, ergonomically designed orthopedic pillow made in the USA. Its unique D-shaped center and dual cervical rolls provide targeted neck support to restore proper spinal alignment, especially for back sleepers. Crafted with nonallergenic polyester fill and a cotton/polyester cover, it helps alleviate neck pain, tension headaches, and shoulder discomfort. Available in a standard full size (24x16 inches), it encourages a gradual transition to improved posture during sleep.

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Brand	Core Products
Model Number	FIB-240
Colour	White
Product Dimensions	64.77 x 41.91 x 15.24 cm; 1.22 kg
Material	Cotton, Polyester
Special Features	Core Products D-Core Cervical Orthopedic Support Pillow, Extra Firm, Standard Full Size for Back Sleeping, Dual Neck Rolls, Made in The USA
Item Weight	1.22 kg

Core Products FIB-240 D-Core Cervical Support Pillow, Standard, White

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