Teach your little one good sleeping habits from a young age with the Sleep Trainer Toddler Clock from Roger Armstrong.Roger Armstrong Sleep Easy Colour Video Baby Viewer - ROG-RA4500 User Manual. Click here to view Roger Armstrong Sleep Easy Colour Video Baby Viewer Help your little one in establishing a healthy sleep habit with the Roger Armstrong Sleep Trainer Toddler Clock and Night Light. Roger Armstrong's Sleep Trainer Toddler Clock helps teach toddlers sleep patterns. Perfect for daylight savings time and when travelling with children and Roger Armstrong The Ultimate Toilet Trainer. Have you tried sleep trainer clocks to help toddlers to understand the time more easily? If not, we've got some Roger Armstrong's Sleep Trainer Toddler Clock helps teach toddlers sleep patterns. Perfect for daylight savings time and when travelling with children and Safe Sleep for your baby. Available from. January 2015. · Age suitability: 18-36 months. ·. Easy to set up and dismantle. ·. Swing down feature.