Yes. Stomach sleepers benefit most because it keeps the hips from sinking into the mattress, which helps prevent lower back pain from spinal misalignment. An ultra firm mattress provides maximum firmness, so it’s the top choice for stomach sleepers who find that standard firm mattresses are still too soft.

For side sleepers, yes. An ultra firm surface doesn’t cushion pressure points, which can lead to discomfort at the hips and shoulders for side sleepers over time. Ultra firm mattresses are better suited to stomach and back sleepers who need more support. Side sleepers should look at soft or medium mattresses instead.

Yes. Sam's Club members get free shipping on most ultra firm mattress orders. Many larger orders also qualify for white glove delivery with in-home setup. Check the product listing for details.