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Nice to see that you're digging into the Forums @HCarol, let me give you a warm welcome to our Community. 
That's a really good questions! Since you're using your Surge only to track your sleep, the information that this has recorded should be in the sleep tile. Make sure that you Surge synced the data recorded the night before and all the sleep details will appear there.
You can find information about syncing via App with Multi Devices in this informative post. Or you can also check this article about having more than one Fitbit device in the same account.
Let me know if you need more help! 
Best Answer