Having been in a series of long-distance relationships myself, I'm not convinced it would be ideal for couples who live within different time zones, especially if there's even the slightest lack of trust. This is because while one is sleeping, the other may be working, jogging or dining out for the evening with friends or work colleagues. This may lead to paranoia if one's significant other isn't available to share their heartbeat, or their heartbeat is somewhat elevated when they should be sleeping, if you know what I mean!
Social media and dating apps have transformed the way we connect, establish and maintain relationships, but they have also been blamed for causing relationship breakups. It will be interesting to discover what Pillow Talk owners make of the product when they are dispatched next summer. Without trying it myself, it's difficult to know for sure if it will be just another novelty, or if it really will be capable of making people feel more connected. I hope it does work, because it would be great if it was able to help people in long-distance relationships maintain intimacy while separated by distance.