Many adjustable bed bases offer sleep trials before buy, just like the mattress.
The trial days can range from 3 to 6 months. However, there are few who do not offer a trial at all.
Returns are handled within the sleep trial periods, just like the mattress, but few brands do not take it back.
Warranties may range differently for an adjustable bed, however, it may range from 3 to 5 years.