I'm looking at these for our short trips: Razor EcoSmart Metro Electric Scooter. A friend has one and swears by it. Reviews are pretty good. Several sources of purchase listed on Google search. Amazon is one.
We've always used the American Trails Ozzie & Harriet double sleeping bag. Plenty big for both and zip the sides down for complete freedom. Easy launder and can make into two separate bags if that's your bag. Got it at Walmart.