If you have an Ultramatic split queen adjustable bed and need new mattresses I will always ask how wide each of your mattresses are.

Ultramatic made two different size split queen beds one where each half is 30" x 80" and one where each half is 32" x 80" so it's important to get the sizing correct if you want the mattresses and all of your bedding to fit properly.

All the models of at this link mattresses can be made in either split queen size of 30" x 80" or 32' x 80"