I have a job that, involving commute, means I'm out the house from 06.45 until 21.15. It's a very demanding job and it's fair to say that when I get home I'm shattered.
I don't normally work two days in a row, the first reason being breast feeding issues and the second reason being that I would struggle if I had to do two consecutive days of being out the house for 14.5 hours if I'd had an horrendous night with DS between the two shifts. DS has just turned 1.
Anyway, at the end of this week (Thursday and Friday) I have agreed to work two consecutive days due to staffing and the plan between me and DH was that after my first shift, rather than go home, I would drive to my mother's, spend the night there and then go straight to work from hers the next morning for my second shift. We agreed this for two reasons, the first is that my mom lives much closer to the hospital than I do (20-25 minute difference in the travelling time) and secondly it would mean I would get a good uninterrupted night's sleep between my 1st and 2nd shift.
However, DS is currently teething and it's affecting him quite badly. For the last 4 nights I have been getting about four hours broken sleep a night as DS keeps waking up, crying, calling out for momma and just wanting cuddles and feeds. It's taking me hours to settle him between his waking periods and it's draining me.
I can't stop thinking about how DS may be on the night I'm supposed to be staying at my mom's house and I feel guilty at the thought of leaving him when he's being so needy. I keep imagining him waking up and being in pain, upset and distressed and me not being there to comfort him 
The other day I didn't get to bed until 04.30am as DS had been up crying for three hours and then I had to get up at 6am for work. I was exhausted. I got through the day though because I knew I didn't have to be at work the next day and I could catch up on my sleep and rest.
I can't deal with the thought of having a night like that again. I don't see how I will manage with having to be out the house for 14.5 hours with work after only having had 4 hours sleep, coming home and dealing with another awful night (having barely any sleep again) and then having to go and do another 13.5 hours at work. I have got the Saturday off to recover but then I'm down for another 13.5hr shift on the Sunday.
As an aside, I have epilepsy so I have to be careful with regards my sleep and rest, hence another reason for wanting a good sleep between my two shifts.
So I know there are valid reasons for staying at my mom's and getting at least one nights uninterrupted sleep but AIBU to still plan on going even when my DS had been needing me so much at night?
I feel awful even considering it and I will probably hate myself afterwards if I learn he was really really upset and I hadn't been there