Is the Novilla hybrid good for side sleepers?

It leans firm, so lighter side sleepers may feel pressure at the shoulder and hip. Heavier side sleepers or those who like a firm bed tend to be happier with it.

Does the gel memory foam sleep cool?

The gel infusion is meant to pull heat away from the foam, and owners generally do not call it hot. It still sleeps warmer than a latex or innerspring-only mattress.

What sheets fit a 14-inch king mattress?

Use deep-pocket king sheets rated for 14 to 16 inches. Standard 12-inch sheets will likely pull off the corners.

How long does it take to expand after unboxing?

Most owners report it reaches near full height within a day or two. Give it 24 to 48 hours before judging the firmness.

Is $175.99 a good price for this king mattress?

That is very low for a king hybrid; the same model is listed new at two stores, so compare both before buying. Confirm the seller's return policy, since a mattress this cheap rarely includes a trial.