I wish we had the trapeze mounted from the ceiling but we have high ceilings in my husband's room. Many people do install ceiling mount lifts. Wouldn't work for us.
I think the word chuck was wonderful because the disposable chucks are thrown away. The best cloth ones have handles to help move the patient.
JC Penny's also has Twin XL sheets. One of my dear friends from high school (that I haven't seen since graduation) ordered us three sets of sheets from there when I asked on FB if anyone had college student's sheets in their linen closet.
You can add a low voltage heated mattress pad pad if your PALS gets cold, and/or a mattress pad protector. If it's a medical grade mattress, make sure it's rated for the right weight but not too thick for easy movement of the bed. This usually amounts to 6-8". If a regular mattress, you may need more thickness.