Splitting Endurance Rides

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I am about to commence an endurance block and am wanting to get some feedback / thoughts on splitting endurance rides. e.g. Riding two hours in the morning and then 2 to 2 1/2 hours at night. Below is what I have planned:

Day 1 - Off
Day 2 AM - 2 hrs with Sprints
Day 2 PM - 2 to 2 1/2 hrs Endurance
Day 3 - 2 1/2 with ME Intervals
Day 4 - Off
Day 5 - Off
Day 6 - 4 1/2 with sprints
Day 7 - 3 1/2 hrs
Day 8 - 2 1/2 hrs
Day 9 - Off
Day 10 - Off
Day 11 - Off