At this age, he may simply not be interested in the activities that absorb the time of other first graders. Thank you for your objective response. It is appropriate to speak with principals as well as teachers and to ask for second opinions and consensus judgements. If done with graciousness and charm, a good school system will value your parental involvement and meet you halfway. If you encounter resistance or negativism, go hire or get whatever help you need.
Children learn what they are exposed to, therefore, what they are exposed to is their education.
Seek quality, be actively involved, and try to keep it warm, natural, and enthusiastic. Good preschool education, in whatever setting, is fun and enjoyable to the participants. I have heard several comments made about detrimental effects on young children's school experience and lack of sleep. Parents can, and should adjust bedtime to allow adequate sleep. Children are not good at regulating their own bedtimes, so this is undeniably a parental responsibility.