You'll have to research what people solve this with today. You'll find them not using laptops but sealed keyboards, displays, pointing devices on carts and such.
At least we know a netbook, laptop is not the answer here.
I want to help a friend buy a Netbook but here is the situation. She is ill and can not get out of bed easily or lift objects heavier then a couple of pounds also her skin is very sensitive to heat. It also must be able to withstand some exposure to fluids and being dropped from bed height without damage. It will be primary used for social networking, Internet and photos, so not a lot of extras are needed. The Battery needs only to be average as there are plugs near by. It of course needs wireless but she will not be traveling with it.
Please help with a recommendation.
Ben @ Children's Hospital