If a bed is higher than a sofa, the difference of the fatigue of getting in and out of bed will just make the difference, very often, to the patient (who can get in and out of bed at all) of being able to take a few minutes' exercise, either in the open air or in another room. It is so very odd that people never think of this, or of how many more times a patient who is in bed for the twenty-four hours is obliged to get in and out of bed than they are, who only, it is to be hoped, get into bed once and out of bed once during the twenty-four hours. [Sidenote: Nor in a dark place.] A patient's bed should always be in the lightest spot in the room; and he should be able to see out of window. [Sidenote: Nor a four poster with curtains.] I need scarcely say that the old four-post bed with curtains is utterly inadmissible, whether for sick or well. Hospital bedsteads are in many respects very much less objectionable than private ones. [Sidenote: Scrofula often a result of disposition of bed clothes.] There is reason to believe that not a few of the apparently unaccountable cases of scrofula among children proceed from the habit of sleeping with the head under the bed clothes, and so inhaling air already breathed, which is farther contaminated by exhalations from the skin. Patients are sometimes given to a similar habit, and it often happens that the bed clothes are so disposed that the patient must necessarily breathe air more or less contaminated by exhalations from his skin. A good nurse will be careful to attend to this. It is an important part, so to speak, of ventilation. [Sidenote: Bed sores.] It may be worth while to remark, that where there is any danger of bed-sores a blanket should never be placed _under_ the patient. It retains damp and acts like a poultice. [Sidenote: Heavy and impervious bed clothes.] Never use anything but light Whitney blankets as bed covering for the sick. The heavy cotton impervious counterpane is bad, for the very reason that it keeps in the emanations from the sick person, while the blanket allows them to pass through. Weak patients are invariably distressed by a great weight of bed clothes, which often prevents their getting any sound sleep whatever.