There are thousands of cases of dementia patients being discharged in the middle of the night, a charity has warned Dementia patients face a gamble with their chances of recovery due to “shockingly poor” treatment offered by some NHS hospitals, the Alzheimer’s Society has warned. A study found “shocking” variations in the standard of care given to dementia patients, with cases of alleged mistreatment including a patient who was restrained with handcuffs and another accused of committing criminal damage by knocking over equipment.