I want to cry right with my puppy

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So I have a 7 week old Goldendoodle male named Chaco. He is so sweet and I love him already. I know it's easier said then done, but when I put him in his crate at night, he is fine. Granted I get up and take him out around 3 am and then again at 6. But when i put him in his crate for a mid day nap (after lunch and a potty break) he wines and cries...it's so sad. I do not show any attention, but when i sit in the room with him, he calms down... I just can't make this a habit. Is there any advice on how to look past this stage and maybe help him with mid day naps? I can't sit in here with him forever, but I don't want to hear him cry...so sad, and it pulls at my heart strings.

Thanks, and look forward to reading these forums and replies!