I am sick w the flu. Cannot get out of bed. Should i daven shmoneh esrei in bed? Can i put on tefillin in bed?
Yes. If you feel that you cannot daven sitting, you may daven and put on tefilin while lying in bed. You should lie on your side and not on your back, or alternatively you can prop up your head and shoulders on a pillow and daven.
Have a Refuah Shelaima!
Shulchan Aruch O:C 94:6, Ishai Yisrael 23:5 (page 225) in name of Rav Shlomo Zalman Auerbach