Must Keriat Shema Al Hamita actually be said on one’s bed or can it be recited elsewhere?
Kriat Shema Al Hamita is the shema that we say right before going to sleep for the night. A Jew finishes his day with a declaration of emuna in H-shem. Similar to when a person ends his life, it is done with a declaration of shema and emunah, so too at the end of the day we make such a declaration. However it does not have to be said specifically while on ones bed. It should however be said as close to to going to sleep.