diff --git a/my/body/__init__.py b/my/body/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/my/body/sleep/common.py b/my/body/sleep/common.py
new file mode 100644
index 0000000..81879fe
--- /dev/null
+++ b/my/body/sleep/common.py
@@ -0,0 +1,17 @@
+from ...core import stat, Stats
+from ...core.pandas import DataFrameT, check_dataframe as cdf
+
+
+class Combine:
+    def __init__(self, modules) -> None:
+        self.modules = modules
+
+    @cdf
+    def dataframe(self) -> DataFrameT:
+        import pandas as pd # type: ignore
+        # todo include 'source'?
+        df = pd.concat([m.dataframe() for m in self.modules])
+        return df
+
+    def stats(self) -> Stats:
+        return stat(self.dataframe)
diff --git a/my/body/sleep/main.py b/my/body/sleep/main.py
new file mode 100644
index 0000000..29b12a7
--- /dev/null
+++ b/my/body/sleep/main.py
@@ -0,0 +1,11 @@
+from ... import jawbone
+from ... import emfit
+
+from .common import Combine
+_combined = Combine([
+    jawbone,
+    emfit,
+])
+
+dataframe = _combined.dataframe
+stats     = _combined.stats
diff --git a/my/emfit/__init__.py b/my/emfit/__init__.py
index 53999b7..acf302c 100755
--- a/my/emfit/__init__.py
+++ b/my/emfit/__init__.py
@@ -133,7 +133,7 @@ def dataframe() -> DataFrameT:
     import pandas # type: ignore
     return pandas.DataFrame(dicts)
 
-# TODO add dataframe support to stat()
+
 from ..core import stat, Stats
 def stats() -> Stats:
     return stat(pre_dataframe)
diff --git a/my/jawbone/__init__.py b/my/jawbone/__init__.py
index 7ea9ad6..c21d455 100755
--- a/my/jawbone/__init__.py
+++ b/my/jawbone/__init__.py
@@ -147,7 +147,6 @@ def dataframe():
     # TODO tz is in sleeps json
 
 
-# TODO add dataframe support to stat()
 def stats():
     from ..core import stat
     return stat(pre_dataframe)