A grandfather sends videos of him singing from his care home to his autistic grandson who lives 350 miles away - to help him fall asleep. Grandfather-of-one George Kerr, 87, lives in Renfrewshire, Scotland, in Elderslie Care Home. As a result he doesn't often see grandson, Keiran Kerr, 13, who lives in Banbury, Oxfordshire. Keiran has autism and struggles to communicate but has a "unique bond" with his grandfather, with the pair speaking regularly on FaceTime. On these calls, musically minded George often sings to Keiran - and the lad loves it. So last month, care home staff recorded George singing Bing Crosby's "White Christmas" to send to Keiran. Keiran's mum, Andrea Kerr, 53, revealed the teen adores the touching video and watches it every night - because hearing his grandfather sing calms him down and helps him fall asleep. Andrea, a civil servant, said: "Keiran is George's only grandson and they share a very unique bond. They always have. "They connect through George's singing - it's always really resonated with Keiran for some reason, and it helps him relax. "Since he got the video of George singing 'White Christmas', Keiran has watched it every night. "He watches it and says, 'night night Grandad, love you to the moon and back'." Andrea explained that the video is treasured by Keiran - and he even shows his friends his singing grandad. One night, Andrea's phone died, and she couldn't show him the video and Keiran was heartbroken. So now she says they have backed the video up on every device - preventing them ever losing access to it. She said: "The video is his most prized possession because his grandad is pretty much his idol."