Davening Lying Down
After being unemployed for 5 months, I recently started a new job where I work until 3 in the morning. When I get home, I go to sleep around 4 AM. I don’t feel like getting up until at least noon, which is obviously too late to daven Shacharis. I very frequently wake up briefly around 7-8. At this time, I don’t have the energy to get out of bed and stand or sit up very long, but I feel capable of reading in bed and reciting morning prayers while lying in bed. Since I started this routine, I’ve been davening Shacharis without tefillin while lying in bed and then going back to sleep. I’ve even been reciting Amidah while lying down. I then put on tefillin later after I am fully awake and able to function out of bed. I don’t know what else to do.
As a rabbi, would you say that for someone in this predicament, is it preferable to daven Shacharis while lying in bed or not to daven at all? Am I doing the right thing or should I stop? Changing my routine at this time is simply not an option at this time.