Our hospital gives free Wi-Fi to patients, but charges for the television and phones (we don't really have any restrictions on patients using their own mobiles though).
My advice, don't bring in any complicated books with you as your brain is likely to feel slightly scrambled, bring in puzzle books/magazines etc. Secure storage is very much at a premium, and I really wouldn't advise anyone to bring in anything too valuable to hospital. If you're looking at a prolonged stay, it can be nice to have one of your own pillows (ours are plastic covered so not terribly comfortable). Bring in some nice smelling lotion, and a small mirror is a good idea as mirrors for some reason are not that common. Bring in your baggiest slippers as your feet may may swell if you're having surgery (see far too many patients with brand new slippers who can't get them on).
If you're having visitors, prime them as to what is acceptable - biggest cause of rows in hospital are what the relatives bring in, best recent examples are husband bringing in wife's property in an Ann Summers bag (much to wife's embarrassment) and husband who when asked to bring in a towel brought in the towel that was used by their dog.
Take care!