My girls will be 6 weeks tomorrow. 
Do you think it would be fine to let them sleep 4 hrs instead of 3 before waking them to eat? 
                 
                PAIF/SAIF Always Welcome
TTC #1 Since 3/2010 Diagnosed with POF
6/2010-IVF #1 Cancelled after ER b/c 0 eggs recovered
On to Donor Eggs
9-30-10 IVF w/ DE begins & Donor started stims 10-4-10
Donor ER 10-14-10 14 Fertilized Eggs ~ ET 10-17-10 (7 Frosties)
IVF #1 11-18-10 M/C @ 7 Weeks~Stopped growing @ 5 Weeks
FET #1 2-1-2011 
Beta #1 13dp3dt 2-14-2011~722
Beta #2 15dp3dt 2-16-2011~1942
1st U/S 3-3-2011~Twin Girls

Re: Waking to eat
Im sorry....during the day.
TTC #1 Since 3/2010 Diagnosed with POF
6/2010-IVF #1 Cancelled after ER b/c 0 eggs recovered
On to Donor Eggs
9-30-10 IVF w/ DE begins & Donor started stims 10-4-10
Donor ER 10-14-10 14 Fertilized Eggs ~ ET 10-17-10 (7 Frosties)
IVF #1 11-18-10 M/C @ 7 Weeks~Stopped growing @ 5 Weeks
FET #1 2-1-2011
Beta #1 13dp3dt 2-14-2011~722
Beta #2 15dp3dt 2-16-2011~1942
1st U/S 3-3-2011~Twin Girls