Night Alert at Strange House and to an Unfamiliar Family Member

Bo gave an encouraging and exciting alert last night while he was on an overnight at Austin's Gramma's house. The alert came at 3:15 am. Bo was sleeping in bed with Austin and Gramma. He jumped off the bed and went to the side of the bed where Gramma was sleeping. He alerted by paw swiping the side of the bed. Gramma woke to Bo pawing the bed and recognized the alert. She checked Austin and he was 220.
Three factors came into play which made this alert especially encouraging and exciting.
1. The alert was in the middle of the night.
2. The alert was at a strange house.
3. The alert was to an unfamiliar family member.